Institute Newton C. Braga

Circuit Bench

Sequential Rhythmic Strobe (CB17057E)
This effects circuit was found in a 1995 documentation. The circuit causes a sequence of LEDs to...
Touch Alarm (CB16237E)
We found this circuit in a 1983 publication. It is a simple touch alarm circuit using a SCR type...
Flood alarm (CB20728E)
Found in an English publication from the 1980s, this circuit uses components that are still common...